CN215289548U

CN215289548U - Concrete pavement structure

Info

Publication number: CN215289548U
Application number: CN202121147284.9U
Authority: CN
Inventors: 张�杰; 张凤言; 李永兴; 薛艺凡
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-24
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a concrete pavement structure, including the road bed layer, be provided with the stone layer of spreading on the road bed layer, be provided with the densification slip casting layer on the stone layer of spreading, set up between brace rod and the brace rod and be connected with the splice bar in the densification slip casting layer, be provided with asphalt concrete layer on the densification slip casting layer, be provided with cement concrete layer on asphalt concrete layer. Pave the stone layer and compact slip casting layer and have the effect of good resistance to compression check to roadbed, when the brace rod is inlayed in the compact slip casting in situ, the reinforcing compact slip casting layer resists the deformability that pushes down, and the connection through the splice bar, make whole compact slip casting layer be difficult for the fracture, asphalt concrete layer's own cushioning nature can cushion the heavy pressure of upper portion, and inlay through frame muscle and bone muscle in cement concrete layer, can strengthen cement concrete layer's compressive capacity, the easy cracked problem under the condition of the heavy truck of round trip to go throughout the year of cement concrete layer has been solved.

Description

Concrete pavement structure

Technical Field

The utility model belongs to the technical field of the concrete road surface, concretely relates to concrete road surface structure.

Background

The concrete road surface is high in strength and good in flushing resistance, is mainly used for non-trunk roads or mountain roads, the mountain roads are not smooth like plain roads but have a certain inclination angle, some curves are arranged on the roads at the edge of a hillside, one side of the road bed is not supported by a mountain, the strength of the solidified concrete road surface is high, the solidified concrete road surface is not easy to deform in burning sun, the stability of the road is good, but when a heavy truck is pulled back to run in the mountain road all the year round, the road bed is easy to dent under the action of pressure, so that the support of the cement concrete layer is lost, and the cement concrete layer is easy to break.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete pavement structure to solve the cement concrete layer that exists among the prior art and make a round trip to go easy cracked problem under the condition of heavy truck throughout the year.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concrete pavement structure, includes the roadbed layer, be provided with on the roadbed layer and spread the stone layer, it is provided with the densification slip casting layer on the stone layer to spread, set up between brace rod and the brace rod and be connected with the splice bar in the densification slip casting layer, be provided with asphalt concrete layer on the densification slip casting layer, be provided with cement concrete layer on the asphalt concrete layer.

Preferably, the compacted grouting layer has a thickness of at least 20 cm.

Preferably, the support rib is wave-shaped.

Preferably, be provided with the frame muscle on the asphalt concrete layer, the frame muscle is U type structure, is connected with the bone muscle between the frame muscle, and frame muscle and bone muscle insert cement concrete layer.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, the primary course on compaction slip casting layer is the ground layer, it forms to inject cement slurry through the pressurization, and cement slurry also can pour into simultaneously and spread the stone layer, make the intraformational stone of stone.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic left side view taken along line A-A of FIG. 1;

fig. 3 is a left side view of fig. 1 taken along line B-B.

In the figure: 1 way basic unit, 2 stone layers of spreading, 3 compaction slip casting layers, 4 brace rods, 5 connecting rods, 6 asphalt concrete layer, 7 frame muscle, 8 bone muscle, 9 cement concrete layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, 2 and 3, a concrete pavement structure comprises a roadbed layer 1, a stone-laying layer 2 is laid on the roadbed layer 1, the particle size of stones in the stone-laying layer 2 is 3 cm, a compacted grouting layer 3 is laid on the stone-laying layer 2, the thickness of the compacted grouting layer 3 is 20 cm, the original layer of the compacted grouting layer 3 is a rock-soil layer, and cement slurry is injected through pressurization, and the cement slurry is also injected into the stone-laying layer 2 at the same time, so that the stones in the stone-laying layer 2 are effectively embedded by the cement slurry, the stone-laying layer 2 is not easy to be subjected to upper pressure scattering, therefore, the stone-laying layer 2 and the compacted grouting layer 3 have good anti-pressure lattice effect on the roadbed layer 1, supporting ribs 4 are uniformly embedded in the compacted grouting layer 3 in the front and back, the left and right adjacent supporting ribs 4 are welded with each other, connecting ribs 5 are welded between the supporting ribs 4 in the front and back positions, the supporting ribs 4 are of a wave type, when the supporting ribs 4 are embedded in the compacted grouting layer 3, the anti-pressing deformation capacity of the compaction grouting layer 3 is enhanced, and the whole compaction grouting layer 3 is not easy to break through the connection of the connecting ribs 5.

Fig. 1, fig. 2 and fig. 3, asphalt concrete layer 6 has been laid after the upper surface of compaction slip casting layer 3 is dug mao and is handled, be provided with cement concrete layer 9 on asphalt concrete layer 6, the embedded intrinsic frame muscle 7 in asphalt concrete layer 6, frame muscle 7 is U type structure, the welding has bone muscle 8 between the frame muscle 7, frame muscle 7 and bone muscle 8 insert cement concrete layer 9, asphalt concrete layer 6 has from the cushioning nature, can cushion the heavy pressure of upper portion, and inlay admittedly in cement concrete layer 9 through frame muscle 7 and bone muscle 8, can strengthen cement concrete layer 9's compressive capacity.

The working principle of the embodiment is as follows: the primary course of the compacted grouting layer 3 is a rock-soil layer, the cement slurry is injected through pressurization to form, and the cement slurry can be injected into the compacted stone layer 2 at the same time, so that stones in the compacted stone layer 2 are effectively embedded by the cement slurry, the compacted stone layer 2 is not easy to be dispersed by the upper pressure, therefore, the compacted stone layer 2 and the compacted grouting layer 3 have a good compression-resistant block effect on the roadbed layer 1, when the supporting ribs 4 are embedded in the compacted grouting layer 3, the compression-resistant deformation capability of the compacted grouting layer 3 is enhanced, and the connection through the connecting ribs 5 ensures that the whole compacted grouting layer 3 is not easy to break, the self buffer performance of the asphalt concrete layer 6 can buffer the upper heavy pressure, and the upper heavy pressure is embedded in the cement concrete layer 9 through the frame ribs 7 and the bone ribs 8, the compression resistance of the cement concrete layer 9 can be enhanced, so that the heavy truck can not easily break under the condition of back-and forth running in the year.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A concrete pavement structure is characterized in that: including road bed layer (1), be provided with on road bed layer (1) and spread stone layer (2), it is provided with compaction slip casting layer (3) on stone layer (2) to spread, set up between holding rod (4) and holding rod (4) in compaction slip casting layer (3) and be connected with between holding rod (5), be provided with asphalt concrete layer (6) on compaction slip casting layer (3), be provided with cement concrete layer (9) on asphalt concrete layer (6).

2. A concrete pavement structure according to claim 1, wherein: the thickness of the compaction grouting layer (3) is at least 20 cm.

3. A concrete pavement structure according to claim 1, wherein: the supporting ribs (4) are wave-shaped.

4. A concrete pavement structure according to claim 1, wherein: the asphalt concrete layer (6) is provided with frame ribs (7), the frame ribs (7) are of a U-shaped structure, bone ribs (8) are connected between the frame ribs (7), and the frame ribs (7) and the bone ribs (8) are inserted into the cement concrete layer (9).